ObservableCallbackDestructor.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Metrics;

use ArrayAccess;
use OpenTelemetry\SDK\Metrics\MetricRegistry\MetricWriterInterface;

/**
 * @internal
 */
final class ObservableCallbackDestructor {
    
    /** @var array<int, ReferenceCounterInterface> */
    public array $callbackIds = [];
    
    /**
     * @param ArrayAccess<object, ObservableCallbackDestructor> $destructors
     */
    public function __construct(ArrayAccess $destructors, MetricWriterInterface $writer) {
    }
    public function __destruct() {
        foreach ($this->callbackIds as $callbackId => $referenceCounter) {
            $this->writer
                ->unregisterCallback($callbackId);
            $referenceCounter->release();
        }
    }

}